Dear,
We know that the water footprint of an individual, community or business is defined as the total volume of freshwater that is used to produce the goods and services consumed by the individual or community or produced by the business.
http://www.nhbs.com/title/178896/the-water-footprint-assessment-manual
Hi Rajib,
It is necessary first you delineate from where fishlings are hatched and all the associated accessories used for hactching and growing fishlings before it is taken to by interestees to culture. Bear in mind about transportation fuel cost for transportation before to culture and after fishes are ready to sell out. In due time of culture, water used for producing and transporting feeding amount till it is ready to sold out, water amount in pond, and medical charges (if applied) ought to be considered. Once total water footprint is accounted then it is easily break down to individual fish. But make sure whether all fishes are sold at once or in fragments.
It would be more clear if you go through The water footprint Assessment manual: setting the global standard too as per suggested by Mohammad.
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